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Finding the Fourth Proportional to 74,252.76, 111,384.42 and 29,879.76

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Solution

The fourth proportional to 74,252.76, 111,384.42 and 29,879.76 is: 44,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,252.76 : 111,384.42 = 29,879.76 : x
  2. Step 2: Convert to fraction form
    74,252.76/111,384.42 = 29,879.76/x
  3. Step 3: Cross multiply
    74,252.76x = 111,384.42 × 29,879.76
  4. Step 4: Simplify right side
    74,252.76x = 3,328,139,737.34
  5. Step 5: Solve for x
    x = 3,328,139,737.34/74,252.76
  6. Step 6: Final answer
    x = 44,821.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.